Description: Leaves simple, alternate, cordate or 3–5 lobes, 8–20 x 4–12 cm; apex acuminate to cuspidate; base cordate to slightly oblique-auriculate; margin serrate to entire; secondary nerves palmate, 3–5 from base, upper nerves 3–7 pairs, tertiary nerves scalariform. Petioles 1.5–18 cm, pubescent. Inflorescences cymose panicle, axillary, pubescent, 1–5-flowered, 5–10 cm long. Flowers bisexual, 5-merous. Calyx free, oblong or ovate-oblong, 0.4–0.7 cm lomg. Petals free, alternate with sepals, spathulate with a concave claw near base, purplish-brown, 1.5–2 cm. long, sparsely hairs outside. Stamens 10, forming a corona, 5 fertile; anthers 2-lobed, extrose. Ovary sessile, oblong, with 5 longitudinal ridges, ca 0.5 cm long, sparsely hairy, 5-locular; style fusiform; stigma 5-lobed. Fruits capsule, conical, with 5 longitudinal wings, 2.5–3 x 4–6 cm, septicidally dehiscent into 5 valves; stalk to 4 cm long, hairy. Seeds many, wingless, black. |
